17. Fie mulţimile: A = {x|x€ 2,-2
Calculaţi: A UB, A O B, A\B

Răspuns:
Explicație pas cu pas:
-2≤x≤4, x∈Z
x={-2,-1,0,1,2,3,4}
A={-2,-1,0,1,2,3,4}
|x|<3
-3<x<3
x={-2,-1,0,1,2}
B={-2,-1,0,1,2}
A∪B={-2,-1,0,1,2,3,4}
A∩B={-2,-1,0,1,2}
A\B={-3,4}
B\A=∅